Prevention and Safe Management of Hydrates and Ice in Process Equipment Guideline
This guideline discusses the prevention and safe management of hydrates and ice in process equipment. This guideline was adapted from a Canadian Association of Petroleum Producers (CAPP) guide on hydrates.
This guideline is currently out for a 45-day industry review. Energy Safety Canada is seeking feedback on this guideline till February 18, 2019. Feedback can be submitted here.
Hydrates are a mixture of water and gas molecules that crystallize to form a solid "ice plug" under appropriate conditions of temperature and pressure. Ice from frozen water is not strictly a hydrate but, for the purposes of prevention and mitigation, ice and hydrates are the same; therefore, when this guideline references hydrates it shall be taken to mean both hydrates and ice.
Hydrates can interrupt the flow of gas and liquids through wells, pipelines and operating equipment and, therefore, require prevention and safe handling when they occur. In the absence of adequate prevention and safe handling, hydrates can result in spills, damage to equipment, the release of large amounts of hazardous energy, and subsequent injury to personnel.